App.getApp().setProperty(name, value); don't work with next start. But it works with real watch.
This bug is bad for developer.
You're not seeing the property you set next time you run your app? I just tried it with the 2.3.2 SDK in the sim, and it's fine for me.
With the ObjectStore, it's only written when app app exits cleanly in most cases. If your app crashes in the sim, no save, for example. How do you exit the app in the sim? What type of app - watch face, widget, etc?
if you put a Sys.println() in onStop() do you see it?